The ozone layer is imaged by shining light of different frequencies (frequencies only ozone can respond to) down on the Earth at different angles, and seeing how strong the light "backscatter" is. Satellites do this from orbit. It is too difficult to make a large number of ground stations, and make a good global map. See the link below for more information.
The ozone layer is not a basic layer of the atmosphere.Starting at the Earth's surface:tropospherestratosphere (the bottom of which contains most of the "ozone layer")mesospherethermosphereexosphere (which extends into outer space)
See "What is causing the depletion of the ozone layer?"
See "In what layer of the atmosphere do you find the ozone layer?"
See "What is the ozone layer?"
The ozone layer is primarily found in the stratosphere, which is the second layer of Earth's atmosphere. This layer is located above the troposphere where we live and breathe, and it contains a majority of the Earth's ozone gas which plays a key role in filtering out harmful ultraviolet radiation from the sun.
No they are in space. No ozone in space.
See "What is the condition of the ozone layer now?"See "How large is the ozone hole now?"See "What is the condition of the ozone layer?"
See "What is the ozone layer?"
See "What is the ozone layer?"
See "How was the ozone layer formed?"
See "What does the ozone layer do?"
See "What does the ozone layer do?"
See "What color is the ozone layer?"
See "What does the ozone layer do?"
See "How was the ozone layer formed?"
See "What does the ozone layer do?"
See "What is causing the depletion of the ozone layer?"